Extras

Video thumbnail: 10 That Changed America 10 Modern Marvels That Changed America

10 That Changed America

10 Modern Marvels That Changed America

A whirlwind tour of 10 engineering feats that made our civilization possible.

10 Modern Marvels That Changed America

Video thumbnail: 10 That Changed America The Eads Bridge Proved the Power of Steel

10 That Changed America

The Eads Bridge Proved the Power of Steel

The Eads Bridge proved that steel could be used for large-scale building projects.

The Eads Bridge Proved the Power of Steel

Video thumbnail: 10 That Changed America Episode 3 Preview | 10 Modern Marvels That Changed America

10 That Changed America

Episode 3 Preview | 10 Modern Marvels That Changed America

A whirlwind tour of 10 engineering feats that made our civilization possible.

Episode 3 Preview | 10 Modern Marvels That Changed America

Video thumbnail: 10 That Changed America Extended Trailer | Modern Marvels

10 That Changed America

Extended Trailer | Modern Marvels

A whirlwind tour of 10 engineering feats that made our civilization possible.

Extended Trailer | Modern Marvels

Video thumbnail: 10 That Changed America Web Extra: A Modern Ride on the Transcontinental Railroad

10 That Changed America

Web Extra: A Modern Ride on the Transcontinental Railroad

Amtrak still operates trains over portions of the original Transcontinental Railroad.

Web Extra: A Modern Ride on the Transcontinental Railroad

Video thumbnail: 10 That Changed America Web Extra: A View from the Top of the Roebling Bridge

10 That Changed America

Web Extra: A View from the Top of the Roebling Bridge

Geoffrey goes to the top of the Roebling Bridge to learn about its engineering feats.

Web Extra: A View from the Top of the Roebling Bridge

Video thumbnail: 10 That Changed America Web Extra: The Current State of the Interstate

10 That Changed America

Web Extra: The Current State of the Interstate

The once futuristic Interstate Highway System is now in need of repair.

Web Extra: The Current State of the Interstate

Video thumbnail: 10 That Changed America Web Extra: When Mules Ruled the Canal

10 That Changed America

Web Extra: When Mules Ruled the Canal

The role played by mules that pulled barges along the Erie Canal in its early days.

Web Extra: When Mules Ruled the Canal